Q1. Figure 1 shows a pair of chromosomes at the start of meiosis. The letters represent alleles. Figure (1)
|
|
- Emma Sims
- 6 years ago
- Views:
Transcription
1 Q1. Figure 1 shows a pair of chromosomes at the start of meiosis. The letters represent alleles. Figure 1 (a) What is an allele? (b) Explain the appearance of one of the chromosomes in Figure 1. (c) The cell containing this pair of chromosomes divided by meiosis. Figure 2 shows the distribution of chromosomes from this pair in four of the gametes produced. Figure 2 (i) Some of the gametes formed during meiosis have new combinations of alleles. Explain how the gametes with the combinations of alleles Ef and ef have been produced.. Page 1 of 15
2 (ii) Only a few gametes have the new combination of alleles Ef and ef. Most gametes have the combination of alleles EF and ef. Suggest why only a few gametes have the new combination of alleles, Ef and ef. (d) Figure 3 shows a cell with six chromosomes. Figure 3 (i) This cell produces gametes by meiosis. Draw a diagram to show the chromosomes in one of the gametes. (ii) How many different types of gametes could be produced from this cell as a result of different combinations of maternal and paternal chromosomes? (Total 9 marks) Q2. The diagram shows a short sequence of DNA bases. T T T G T A T A C T A G T C T A C T T C G T T A A T A (a) (i) What is the maximum number of amino acids for which this sequence of DNA bases could code? Page 2 of 15
3 (ii) The number of amino acids coded for could be fewer than your answer to part (a)(i). Give one reason why. (b) Explain how a change in the DNA base sequence for a protein may result in a change in the structure of the protein. (Extra space)... (3) (c) A piece of DNA consisted of 74 base pairs. The two strands of the DNA, strands A and B, were analysed to find the number of bases of each type that were present. Some of the results are shown in the table. Number of bases C G A T Strand A 26 Strand B 19 9 Complete the table by writing in the missing values. (Total 7 marks) Page 3 of 15
4 Q3. Figure 1 shows a short section of a DNA molecule. Figure 1 (a) Name parts R and Q. (i) R... (ii) Q... (b) Name the bonds that join A and B. (c) Ribonuclease is an enzyme. It is 127 amino acids long. What is the minimum number of DNA bases needed to code for ribonuclease? Page 4 of 15
5 (d) Figure 2 shows the sequence of DNA bases coding for seven amino acids in the enzyme ribonuclease. Figure 2 G T T T A C T A C T C T T C T T C T T T A The number of each type of amino acid coded for by this sequence of DNA bases is shown in the table. Amino acid Number present Arg 3 Met 2 Gln 1 Asn 1 Use the table and Figure 2 to work out the sequence of amino acids in this part of the enzyme. Write your answer in the boxes below. Gln (e) Explain how a change in a sequence of DNA bases could result in a non-functional enzyme. (3) (Total 8 marks) Page 5 of 15
6 Q4. (a) Meiosis results in variation between individuals within a population. Describe and explain one way the production of gametes by meiosis contributes to this variation. (b) A and B are varieties of wheat. Scientists grew both varieties in identical conditions and measured the height_s of the fully grown plants. The results are shown in the diagram. (i) Describe two ways in which the results for variety A differ from the results for variety B (ii) Suggest the advantage to a farmer of growing variety B rather than variety A. Page 6 of 15
7 (c) The effect of global warming on the environment is uncertain. It is important to keep seeds of the old varieties. Suggest why. (Total 8 marks) Q5. A student investigated the stages of mitosis in a garlic root. The root tip was placed on a microscope slide with a stain. A cover slip was placed on top and the root tip was firmly squashed. (a) Explain why (i) a root tip was used; (ii) a stain was used; (iii) the root tip was firmly squashed. Page 7 of 15
8 (b) The student examined the cells in the garlic root tip under the microscope, and obtained the following data. Stage Number of cells Interphase 872 Prophase 74 Metaphase 18 Anaphase 10 Telophase 8 (i) Calculate the percentage of these cells in which the chromosomes are visible and would consist of a pair of chromatids joined together. Show your working. Answer... (ii) A different set of results was obtained when the count was repeated on another occasion with a different garlic root tip. Give two reasons for the difference in results (Total 7 marks) Page 8 of 15
9 Q6. The diagram shows the main stages in the formation of sperms in a human testis. (a) Describe two ways, other than size, in which cells at anaphase of division A would differ from cells at anaphase in division B Page 9 of 15
10 (b) Give two ways in which meiosis contributes to genetic variation in the mature sperms (Total 4 marks) Q7. (a) The diagram shows a cell undergoing cell division. Identify the type and stage of cell division shown. Give evidence from the diagram to support your answer. (3) Page 10 of 15
11 (b) Describe how crossing over occurs during meiosis I. (Total 5 marks) Q8. The diagram shows one nucleotide pair of a DNA molecule. (a) Name the parts of the nucleotide labelled X, Y and Z. X... Y... Z... (3) (b) What type of bond holds Z and Q together? Page 11 of 15
12 (c) A sample of DNA was analysed. 28% of the nucleotides contained thymine. Calculate the percentage of nucleotides which contained cytosine. Show your working. Answer... % (Total 6 marks) Q9. Division of the nucleus by meiosis produces haploid cells from a diploid cell. Nuclei produced by mitosis have the same number of chromosomes as the parent nucleus. (a) What is the biological importance of reducing the chromosome number when the cell divides by meiosis? Page 12 of 15
13 (b) The table gives one difference between meiosis and mitosis. Complete the table by giving three further differences. Meiosis Mitosis 1 Reduces the chromosome number Maintains the same chromosome number as in the parent nucleus (3) (Total 5 marks) Q10. The diagram shows a short section of a DNA molecule. (a) On the diagram draw a box round one nucleotide. Page 13 of 15
14 (b) Use the letters in the diagram to indicate a part of the molecule which (i) is not a base and is different in an RNA molecule; (ii) contains nitrogen. (c) (i) The sequence of bases on one strand of DNA is important for protein synthesis. What is its role? (ii) How are the two strands of the DNA molecule held together? (iii) Give one advantage of DNA molecules having two strands. (Total 6 marks) Page 14 of 15
15 Page 15 of 15
Adenine % Guanine % Thymine % Cytosine %
1. Explain each of the following statements in terms of your knowledge of the structure and function of DNA. (i) In all living organisms the ratio species to another. A C T G is constant but the ratio
More informationGenetics and Genomics in Medicine Chapter 1. Questions & Answers
Genetics and Genomics in Medicine Chapter 1 Multiple Choice Questions Questions & Answers Question 1.1 In a DNA double helix each type of base forms a stable base pair with only one type of base. When
More informationGenetics and Genomics in Medicine Chapter 1 Questions
Genetics and Genomics in Medicine Chapter 1 Questions Multiple Choice Questions Question 1.1 In a DNA double helix each type of base forms a stable base pair with only one type of base. When bases on an
More informationREVISION: DNA, RNA & MEIOSIS 13 MARCH 2013
REVISION: DNA, RNA & MEIOSIS 13 MARCH 2013 Lesson Description In this lesson we revise The structure and functions of DNA The structure of RNA and its role in protein synthesis The process of cell division
More informationChapter 9 WHAT IS DNA?
Notes DNA Chapter 9 WHAT IS DNA? DNA= Deoxyribonucleic Acid DNA s job is to hold the entire genetic code for the organism. Human, tree, bacteria, mushroom, paramecium, etc! ALL HAVE DNA! DNA is held on
More informationM1. (a) (Different) form/type/version of a gene/different base sequence of a gene; 1. Joined by a centromere; 2 max
M. (a) (Different) form/type/version of a gene/different base sequence of a gene; Two/sister chromatids; Due to DNA replication; Joined by a centromere; max (c) (i) Crossing over; Exchange (of alleles)
More informationCell Division. Use Target Reading Skills. This section explains how cells grow and divide.
Name Date Class Cell Processes Guided Reading and Study Cell Division This section explains how cells grow and divide. Use Target Reading Skills As you read, make a cycle diagram that shows the events
More informationLesson Overview DNA Replication
12.3 THINK ABOUT IT Before a cell divides, its DNA must first be copied. How might the double-helix structure of DNA make that possible? Copying the Code What role does DNA polymerase play in copying DNA?
More informationLesson Overview DNA Replication
12.3 THINK ABOUT IT Before a cell divides, its DNA must first be copied. How might the double-helix structure of DNA make that possible? Review Question! At what stage of the cell cycle do cells duplicate
More informationProtein Synthesis: From Gene RNA Protein Trait
Protein Synthesis: From Gene RNA Protein Trait Human Genome The human genome contains about genes. Each gene is a of DNA (sequence of nitrogen bases) contained within each chromosome. Each chromosome contains
More informationRead each question, and write your answer in the space provided. 2. How did Mendel s scientific work differ from the work of T. A. Knight?
Name Date Class CHAPTER 8 DIRECTED READING Mendel and Heredity Section 8-1: The Origins of Genetics Mendel and Others Studied Garden-Pea Traits 1. What did T. A. Knight discover? 2. How did Mendel s scientific
More informationBiology Milestone: Unit 3 Topics (Growth and Heridity)
Biology Milestone: Unit 3 Topics (Growth and Heridity) Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The diagram shows the DNA fingerprints from a blood
More informationUNIT 3: CELL REPRODUCTION
UNIT 3: CELL REPRODUCTION What are Chromosomes? Cell structures that contain genetic material. Where are they found? Found inside a cell, inside the nucleus. VOCABULARY Somatic cells (body cells) Sex cells
More informationChapter 8 DNA STRUCTURE AND CHROMOSOMAL ORGANIZATION
Chapter 8 DNA STRUCTURE AND CHROMOSOMAL ORGANIZATION Chapter Summary Even though DNA has been known as a biochemical compound for over 100 years, it was not implicated as the carrier of hereditary information
More informationHuman Anatomy & Physiology I Dr. Sullivan Unit IV Cellular Function Chapter 4, Chapter 27 (meiosis only)
Human Anatomy & Physiology I Dr. Sullivan Unit IV Cellular Function Chapter 4, Chapter 27 (meiosis only) I. Protein Synthesis: creation of new proteins a. Much of the cellular machinery is devoted to synthesizing
More informationBYA3. HUMAN BIOLOGY (SPECIFICATION A) Unit 3 Pathogens and Disease. General Certificate of Education June 2005 Advanced Subsidiary Examination
Surname Other Names Leave blank Centre Number Candidate Number Candidate Signature General Certificate of Education June 2005 Advanced Subsidiary Examination HUMAN BIOLOGY (SPECIFICATION A) Unit 3 Pathogens
More information1. I can describe the stages of the cell cycle.
Unit 5 Study Guide Cell Cycle pg. 1 1. I can describe the stages of the cell cycle. Interphase = period in between division G1 = growth phase S = DNA replication G2 = Preparation for division (extra copies
More informationProblem Set Unit The base ratios in the DNA and RNA for an onion (Allium cepa) are given below.
Problem Set Unit 3 Name 1. Which molecule is found in both DNA and RNA? A. Ribose B. Uracil C. Phosphate D. Amino acid 2. Which molecules form the nucleotide marked in the diagram? A. phosphate, deoxyribose
More information1. I can describe the stages of the cell cycle.
Unit 5 Study Guide Cell Cycle pg. 1 1. I can describe the stages of the cell cycle. Interphase = period in between division G1 = growth phase S = DNA replication G2 = Preparation for division (extra copies
More informationCELLULAR PROCESSES; REPRODUCTION. Unit 5
CELLULAR PROCESSES; REPRODUCTION Unit 5 Cell Cycle Chromosomes and their make up Crossover Cytokines Diploid (haploid diploid and karyotypes) Mitosis Meiosis What is Cancer? Somatic Cells THE CELL CYCLE
More informationGenetics and Heredity. Mr. Gagnon
Genetics and Heredity Mr. Gagnon Key Terms: Traits Heredity Genetics Purebred Genes Alleles Recessive Allele Dominant Allele Hybrids Key Concepts: What factors control the inheritance of traits in organisms?
More informationWk Std Monday Tuesday Wednesday Thursday Friday 13 Obj./Essential question: ~DNA Structure ~DNA Replication
Wk Std Monday Tuesday Wednesday Thursday Friday 13 NO SCHOOL What are the 4 nitrogenous bases of DNA? DNA & Ch 11.1 281-287 replication review questions When 2 daughter strands of dna are synthesized from
More informationHonors Biology Semester 2 Final Exam Review Guide
Honors Biology Semester 2 Final Exam Review Guide As the final exam approaches, so should your preparation for the test. You should review all old exams given this semester: Cell Cycle, DNA, Genetics,
More informationBiology Semester Exam Study Guide--January 2016
Objective Response Reflection 3 = I totally know this! :) 2 = I remember this somewhat 1 = I don't remember this at all Explain the difference between independent and dependent variables. Explain what
More informationDNA DNA Profiling 18. Discuss the stages involved in DNA profiling 19. Define the process of DNA profiling 20. Give two uses of DNA profiling
Name: 2.5 Genetics Objectives At the end of this sub section students should be able to: 2.5.1 Heredity and Variation 1. Discuss the diversity of organisms 2. Define the term species 3. Distinguish between
More informationCopyright 2014 Edmentum - All rights reserved.
Copyright 2014 Edmentum - All rights reserved. Biology DNA and Genes Blizzard Bag 2014-2015 1. When a cell needs a particular protein synthesized, messenger RNA (mrna) is produced from DNA through transcription.
More informationDNA. Discovery of the DNA double helix
DNA Replication DNA Discovery of the DNA double helix A. 1950 s B. Rosalind Franklin - X-ray photo of DNA. C. Watson and Crick - described the DNA molecule from Franklin s X-ray. What is DNA? Question:
More informationGENETICS. I. Review of DNA/RNA A. Basic Structure DNA 3 parts that make up a nucleotide chains wrap around each other to form a
GENETICS I. Review of DNA/RNA A. Basic Structure DNA 3 parts that make up a nucleotide 1. 2. 3. chains wrap around each other to form a Chains run in opposite direction known as Type of bond between the
More informationUnit 4 Information NUCLEIC ACIDS DNA GENES DOUBLE HELIX REPLICATION MITOSIS
Unit 4 Information NUCLEIC ACIDS DNA GENES DOUBLE HELIX REPLICATION MITOSIS 1/2/2018 Bell Work What is a Gene? Genes as Medicine As you watch the film, complete the questions on the film guide. When you
More informationGENETICS. Chapter 1: Cell cycle. Thème 1 : La Terre dans l Univers A. Expression, stabilité et variation du patrimoine génétique.
Introduction: GENETICS 3M = first look at genetics (study of inheritance, discovery of chromosomes, genes, dominant and recessive alleles and the DNA molecule within chromosomes) 2D = not much in fact,
More informationWhat Are the Yeast Cells Doing?
Cell Division Reading Preview Key Concepts What events take place during the three stages of the cell cycle? How does the structure of DNA help account for the way in which DNA copies itself? Key Terms
More information2018 Midterm Exam Review KEY
Name: 2018 Midterm Exam Review KEY 1. The Himalayan rabbit s habitat has cold, snowy winters and mild summers. The body is typically covered in white fur except for the nose, feet, tail and ears, which
More informationPage 1. C) DNA molecules, only D) both DNA and RNA molecules. C) nitrogenous bases D) amino acids. C) starch and glycogen D) fats and oils
Name: 1) Which molecules are composed of units known as nucleotides? A) messenger RNA molecules, only B) transfer RNA molecules, only 2) The individuality of an organism is determined by the organism's
More informationStudent Sheet 1.1: KWL Chart
Student s Name Date Class Student Sheet 1.1: KWL Chart Topic: K W L What do you Know? What do you Want to know? What did you Learn? Lesson 1 / Pre-Assessment: Genes and Molecular Machines Student s Name
More informationCell Division. embryo: an early stage of development in organisms
Over the past several years, a debate has been brewing over the use of stem cells. Stem cells can be used to treat certain diseases and conditions such as spinal cord injuries, diabetes, arthritis, and
More informationLab 5 Cell Biology II
Lab 5 Cell Biology II Learning Objectives Describe the structures and processes required for protein synthesis. Define a gene. Compare chromosomes and chromatin. Describe the process of DNA replication.
More informationUnit 5 Part B: Day 1 Cell Growth, Division & Reproduction
Name Test Date Period Unit 5 Part B: Day 1 Cell Growth, Division & Reproduction CELL SIZE LIMITATIONS Cells that are will have diffusing materials through the cell. -,, and must enter cell at an efficient
More informationVocab Word 1: Interphase
Vocab Word 1: Interphase Interphase is the phase of the cell cycle in which a typical cell spends most of its life. During this phase, the cell copies its DNA in preparation for mitosis. Interphase is
More information1. What is DNA? 2. List anything you know about DNA. (from readings, class, TV?)
1. What is DNA? 2. List anything you know about DNA (from readings, class, TV?) Before we begin, let s investigate the way DNA molecules are set up! http://learn.genetics.utah.edu/content/molec ules/builddna/
More informationDNA and DNA Replication
Name Period PreAP Biology QCA 2 Review Your EOS exam is approximately 70 MC questions. This review, coupled with your QCA 1 review you received in October should lead you back through the important concepts
More informationDNA and GENETICS UNIT NOTES
DNA and GENETICS UNIT NOTES NAME: DO NOT LOSE! DNA DNA - Deoxyribose Nucleic Acid Shape is called double helix DNA has the information for our cells to make proteins. DNA through transcription makes mrna
More informationBIOLOGY/HUMAN BIOLOGY BY1
Surname entre Number andidate Number Other Names 2 GE AS/A level 1071/01 S15-1071-01 BIOLOGY/UMAN BIOLOGY BY1 P.M. TURSDAY, 21 May 2015 1 hour 30 minutes For s use Question Maximum Mark Mark Awarded 1.
More information1. What is DNA? 2. List anything you know about DNA. (from readings, class, TV?)
1. What is DNA? 2. List anything you know about DNA (from readings, class, TV?) Before we begin, let s investigate the way DNA molecules are set up! http://learn.genetics.utah.edu/content/molec ules/builddna/
More informationUnit 4: Cell Development and Replication, Part I: The Cell Cycle
Name: Block: PACKET #9 Reading: Unit 4: Cell Development and Replication, Part I: The Cell Cycle Objectives: By the conclusion of this unit you will be able to: Date: Introduction to the cell cycle 1.
More informationDNA, Replication and RNA
DNA, Replication and RNA The structure of DNA DNA, or Deoxyribonucleic Acid, is the blue prints for building all of life. DNA is a long molecule made up of units called NUCLEOTIDES. Each nucleotide is
More informationDNA and Replication 1
DNA and Replication 1 History of DNA 2 History of DNA Early scientists thought protein was the cell s hereditary material because it was more complex than DNA Proteins were composed of 20 different amino
More informationDESIGNER GENES SAMPLE TOURNAMENT
DESIGNER GENES SAMPLE TOURNAMENT PART ONE- GENETICS PROBLEMS In dogs, the inheritance of hair color involves a gene (B) for black hair and a gene (b) for brown hair. A dominant (C) is also involved. It
More informationGenetic variation and change the short version
Part 1: Biodiversity and variation Genetic variation and change the short version Define biodiversity and describe its advantages. Why is variation important to a species? What is DNA? A chromosome? A
More informationDNA and Chromosomes. 2. What molecules make up the rungs of the ladder? 3. What keeps the two sides of the ladder paired?
DNA and Chromosomes Objectives: At the end of this lab you should be able to: 1. Describe the structure and function of DNA. 2. Know which bases in DNA pair with each other. 3. Define the terms chromatid,
More information2. Not (associated) with proteins / histones; Accept does not form chromosomes / chromatin
M.(a) (i) Joins nucleotides (to form new strand). Accept: joins sugar and phosphate / forms sugar-phosphate backbone Reject: (DNA polymerase) forms base pairs / hydrogen bonds (ii) (Prokaryotic DNA). Circular
More informationcopyright cmassengale 2
1 copyright cmassengale 2 History of DNA Early scientists thought protein was the cell s hereditary material because it was more complex than DNA Proteins were composed of 20 different amino acids in long
More informationX-Sheet 1 The Nucleus and DNA
X-Sheet 1 The Nucleus and DNA 1 Key Concepts: In this session we will focus on summarising what you need to know about: the Nucleus, genes, nucleic acids, RNA, DNA Terminology & definitions: Chromatin
More informationDNA is the genetic material found in cells Stands for: Deoxyribonucleic Acid Is made up of repeating nucleic acids It s the Unit of Heredity
What is DNA? DNA is the genetic material found in cells Stands for: Deoxyribonucleic Acid Is made up of repeating nucleic acids It s the Unit of Heredity DNA is found in the cytoplasm of prokaryotes and
More informationBellringer: UNIT 7: DNA Structure & Replication DAYSHEET 79: Introduction to DNA Structure. 1. Get out your technology and go to
UNIT 7: DNA Structure & Replication DAYSHEET 79: Introduction to DNA Structure Name: Biology I Date: Bellringer: 1. Get out your technology and go to www.biomonsters.com 2. Click the Biomonsters Cinema
More informationBio Study Guide. What is the structure of a DNA. A nitrogen base (ATCG/AUCG) connected to a sugar and a phosphate. nucleotide?
What are nucleic acids? The largest organic molecules. Master organisms, they are in control of cell functions. They are found in all living organisms, and they are two types of them- DNA and RNA. They
More informationGene Eukaryotic Codons Transcription Nucleotides
Warm-Up: Fill in the blanks with this word bank: Nucleus Three Amino acids Deoxyribose nucleic acid Gene Eukaryotic Codons Transcription Nucleotides Protein Ribosomes Translation Check your answers: 1.
More informationA C C C C A T T T C A T C C A. The table below shows the anticodon for some trna molecules and the specific amino acids each would carry.
1 The diagram below shows the sequence of bases in one strand of the DNA from part of a gene. The base sequence is read from left to right. DNA base sequence A C C C C A T T T C A T C C A The table below
More informationThese molecules make up the ladder of the DNA Bound by weak hydrogen bonds. 4 Different Types (2 specific matches) look at the
B.A.T. Review DNA & Cell Cycle Test is 11/3/16 NAME: PERIOD DNA STRUCTURE VOCABULARY Mitosis Chromosomes Interphase G1,S,G2,M Prophase Metaphase Anaphase Telophase Cytokinesis Cleavage Furrow Spindle Fibers
More informationPMT. Explain how the differences between the DNA sequences from the quagga and the mountain zebra may have arisen as a result of mutation
1. In 1984 the first useful DNA sequences were extracted from the dried muscle tissue of the quagga, a zebra-like animal that became extinct in 1883. opies of the DNA sequences were obtained by inserting
More informationSections 12.3, 13.1, 13.2
Sections 12.3, 13.1, 13.2 Background: Watson & Crick recognized that base pairing in the double helix allows DNA to be copied, or replicated Each strand in the double helix has all the information to remake
More informationDNA and the Production of Proteins Course Notes. Cell Biology. Sub-Topic 1.3 DNA and the Production of Proteins
Cell Biology Sub-Topic 1.3 DNA and the Production of Proteins On completion of this subtopic I will be able to state that: Chromosomes contain genetic information that gives rise to an organism s characteristics.
More information1. What is DNA? 2. List anything you know about DNA. (from readings, class, TV?)
1. What is DNA? 2. List anything you know about DNA (from readings, class, TV?) Before we begin, let s investigate the way DNA molecules are set up! http://learn.genetics.utah.edu/content/molec ules/builddna/
More informationDNA Replication: Paper Clip Activity
DNA Replication: Paper Clip Activity Name Hour: Date: Quick Review: Each DNA molecule has a unique structure that makes it different from other DNA molecules (Remember A chromosome is condensed DNA and
More informationChapter 3. DNA Replication & The Cell Cycle
Chapter 3 DNA Replication & The Cell Cycle DNA Replication and the Cell Cycle Before cells divide, they must duplicate their DNA // the genetic material DNA is organized into strands called chromosomes
More informationDNA, Genes and Chromosomes. Vocabulary
Vocabulary Big Ideas Heredity and Reproduction Understand and explain that every organism requires a set of instructions that specifies its traits, that this hereditary information (DNA) contains genes
More informationStandard B-4: The student will demonstrate an understanding of the molecular basis of heredity.
B-4.1 Compare DNA and RNA in terms of structure, nucleotides, and base pairs. Taxonomy Level: 2.6-B Understand Conceptual Knowledge Key Concepts: Nucleic acids: deoxyribonucleic acid (DNA), ribonucleic
More informationGenetics and Heredity Power Point Questions
Name period date assigned date due date returned Genetics and Heredity Power Point Questions 1. Heredity is the process in which pass from parent to offspring. 2. is the study of heredity. 3. A trait is
More information1 The table shows some mrna base sequences and the amino acid sequences that would be produced from them.
1 The table shows some mrna base sequences and the amino acid sequences that would be produced from them. mrna base sequence AGU AGU AGU AGU AGU CAC ACA CAC ACA CAC CAA CAA CAA CAA CAA AAC AAC AAC AAC
More informationLecture 4 04/12/2018
Lecture 4 04/12/2018 Communicating cells may be close (local) or far (distant) Local signaling: a chemical signal which communicates between 2 nearby cells. Paracrine signaling: a cell secretes the signal
More informationC. Incorrect! Second Law: Law of Independent Assortment - Genes for different traits sort independently of one another in the formation of gametes.
OAT Biology - Problem Drill 20: Chromosomes and Genetic Technology Question No. 1 of 10 Instructions: (1) Read the problem and answer choices carefully, (2) Work the problems on paper as needed, (3) Pick
More informationQuestion Answer Acceptable answers Mark. 1(a) D haploid and haploid (1) Number. 1 (b) A description linking three of the following (3)
1(a) D haploid and haploid Question 1 (b) A description linking three of the following (3) (DNA is a) double helix the sides of DNA are made from (alternating) sugars and phosphate (molecules) / sugar
More informationOutline. Structure of DNA DNA Functions Transcription Translation Mutation Cytogenetics Mendelian Genetics Quantitative Traits Linkage
Genetics Outline Structure of DNA DNA Functions Transcription Translation Mutation Cytogenetics Mendelian Genetics Quantitative Traits Linkage Chromosomes are composed of chromatin, which is DNA and associated
More informationHaveouts Guided Notes Pen/pencil DFAD Privacy Folder Silent after the bell rings
Haveouts Guided Notes Pen/pencil DFAD Privacy Folder Silent after the bell rings #1 #3 Pop Quiz This Do First will be counted as a Quiz grade with no curve. Use your DFAD. #2 1. Identify structure #1.
More informationKeeping Cells Identical The instructions for making cell parts are encoded in the DNA, so each new cell must get a complete set of the DNA molecules.
CELLULAR DIVISION Cell Theory Pro/Euk review Cells are the basic unit of life. All living things have cell(s). All cells are formed from existing cells. Keeping Cells Identical The instructions for making
More informationGENETICS 1 Classification, Heredity, DNA & RNA. Classification, Objectives At the end of this sub section you should be able to: Heredity, DNA and RNA
Classification, Heredity, DNA and Objectives At the end of this sub section you should be able to: RNA Heredity and Variation Gene Expression DNA structure DNA Profiling Protein Synthesis 1. Discuss the
More informationDNA- THE MOLECULE OF LIFE. Link
DNA- THE MOLECULE OF LIFE Link STRUCTURE OF DNA DNA (Deoxyribonucleic Acid): DNA is a long, stringy, twisted molecule made up of nucleotides that carries genetic information. DISCOVERIES Rosalind Franklin,
More informationWhat happens after DNA Replication??? Transcription, translation, gene expression/protein synthesis!!!!
What happens after DNA Replication??? Transcription, translation, gene expression/protein synthesis!!!! Protein Synthesis/Gene Expression Why do we need to make proteins? To build parts for our body as
More informationDNA STRUCTURE. Nucleotides: Nitrogenous Bases (Carry the Genetic Code) Expectation Sheet: DNA & Cell Cycle. I can statements: Basic Information:
Expectation Sheet: DNA & Cell Cycle NAME: Test is 11/8/17 I can statements: I can discuss how DNA is found in all organisms and that the structure is common to all living things. I can diagram and label
More informationDNA- THE MOLECULE OF LIFE
DNA- THE MOLECULE OF LIFE STRUCTURE OF DNA DNA (Deoxyribonucleic Acid): DNA is a long, stringy, twisted molecule made up of nucleotides that carries genetic information. DISCOVERIES Rosalind Franklin,
More informationUnit 2: Biological basis of life, heredity, and genetics
Unit 2: Biological basis of life, heredity, and genetics 1 Issues with Darwin's Evolutionary Theory??? 2 Cells - General Composition Organelles - substructures in the cell which do different things involved
More informationFig. 16-7a. 5 end Hydrogen bond 3 end. 1 nm. 3.4 nm nm
Fig. 16-7a end Hydrogen bond end 1 nm 3.4 nm 0.34 nm (a) Key features of DNA structure end (b) Partial chemical structure end Fig. 16-8 Adenine (A) Thymine (T) Guanine (G) Cytosine (C) Concept 16.2: Many
More informationGENES AND CHROMOSOMES-I. Lecture 3. Biology Department Concordia University. Dr. S. Azam BIOL 266/
GENES AND CHROMOSOMES-I Lecture 3 BIOL 266/2 2014-15 Dr. S. Azam Biology Department Concordia University GENE AND THE GENOME Terms to remember. Base pairs Genes Histones Nucleosomes DNA Chromatids Chromosomes
More informationWhat is DNA? DEOXYRIBONUCLEIC ACID
DNA What is DNA? DEOXYRIBONUCLEIC ACID What does DNA do? STORES AND PASSES ON GENETIC INFORMATION FROM ONE GENERATION TO ANOTHER. Scientists Hershey and Chase confirmed that DNA carries genetic information.
More informationBiology 30 DNA Review: Importance of Meiosis nucleus chromosomes Genes DNA
Biology 30 DNA Review: Importance of Meiosis Every cell has a nucleus and every nucleus has chromosomes. The number of chromosomes depends on the species. o Examples: Chicken 78 Chimpanzee 48 Potato 48
More informationADENINE, THYMINE,CYTOSINE, GUANINE
MOLECULAR GENETICS Molecular Genetics - the branch of genetics concerned with the structure and activity of genetic material at the molecular level Genetic Material - chromatin (chromosomes) within the
More informationREVIEW SHEET: Units 9 & 10 Cell Cycle, DNA, & Gene Expression
REVIEW SHEET: Units 9 & 10 Cell Cycle, DNA, & Gene Expression HONORS BIOLOGY Textbook Reading: Cell Cycle (Ch. 10.1 and 10.2), DNA (Ch. 12), and Gene Expression (Ch. 13) Handouts:! Online Tutorial: Cell
More informationIntroduction to Biological Anthropology: Notes 6 Beyond Mendel: Molecular genetics, cell division, and sex Copyright Bruce Owen 2008 Mendel s model
Introduction to Biological Anthropology: Notes 6 Beyond Mendel: Molecular genetics, cell division, and sex Copyright Bruce Owen 2008 Mendel s model was completely abstract. No one had ever seen a particle
More informationStructure of DNA. Characteristics of DNA. Carries genetic information for traits in an organism. Twisted, double-helix structure
Structure of DNA Characteristics of DNA Carries genetic information for traits in an organism Twisted, double-helix structure Coding is carried in two sets of complimentary bases: Adenine-Thymine Guanine-Cytosine
More informationDNA, RNA & Proteins Chapter 13
DNA, RNA & Proteins Chapter 13 DNA stands for. What is DNA? - The genetic information that controls the activity of a cell. - Located in the of every one of your cells. What is the structure of DNA like?
More informationThe Chemistry of Genes
The Chemistry of Genes Adapted from Success in Science: Basic Biology Key Words Codon: Group of three bases on a strand of DNA Gene: Portion of DNA that contains the information needed to make a specific
More informationamino acid nucleic acid nucleotide DNA/RNA enzymes lock and key model catalyst carbohydrate monosaccharide glucose
Unit 1: Biomolecules I. Terms You Should Know lipid fatty acid & glycerol monomer biomolecule protein amino acid nucleic acid nucleotide DNA/RNA enzymes lock and key model catalyst carbohydrate monosaccharide
More informationSection DNA: The Molecule of Heredity
Ch 11: DNA and Genes - DNA: The Molecule of Heredity Inside This Section... What is DNA? The Structure of DNA DNA Replication What is DNA? Acid DNA is the blueprint of all living organisms. It controls
More informationRNA & PROTEIN SYNTHESIS
RNA & PROTEIN SYNTHESIS DNA & RNA Genes are coded DNA instructions that control the production of proteins within the cell. The first step in decoding these genetic messages is to copy part of the nucleotide
More informationDNA RNA PROTEIN. Professor Andrea Garrison Biology 11 Illustrations 2010 Pearson Education, Inc. unless otherwise noted
DNA RNA PROTEIN Professor Andrea Garrison Biology 11 Illustrations 2010 Pearson Education, Inc. unless otherwise noted DNA Molecule of heredity Contains all the genetic info our cells inherit Determines
More informationCELL BIOLOGY: DNA. Generalized nucleotide structure: NUCLEOTIDES: Each nucleotide monomer is made up of three linked molecules:
BIOLOGY 12 CELL BIOLOGY: DNA NAME: IMPORTANT FACTS: Nucleic acids are organic compounds found in all living cells and viruses. Two classes of nucleic acids: 1. DNA = ; found in the nucleus only. 2. RNA
More informationCell Division (pages 55 62)
Cell Division (pages 55 62) Stage 1: Interphase (page 56) Key Concept: During interphase, the cell grows, makes a copy of its DNA, and prepares to divide into two cells. For living things to grow, their
More informationWhat does DNA stand for?
DNA and RNA What does DNA stand for? DNA = deoxribonucleic acid NOTE: the DNA from one cell would stretch 3 metre DNA are coiled and folded. DNA has two strands. What four bases are used in DNA? The four
More informationApplied Practice. Inheritance, Genetic Mutations, and DNA Technology STAAR Biology EOC
Applied Practice Inheritance, Genetic Mutations, and DNA Technology STAAR Biology EOC RESOURCE GUIDE Volume 4 Copyright 2013 by Applied Practice All rights reserved. No part of the Answer Key and Explanations
More informationName: Family: Date: Monday/Tuesday, March 9,
Name: Family: Date: Monday/Tuesday, March 9,10 2015 Select the best answer for each question: Part 1: Multiple Choice (2 points each) 1. Protein Synthesis involves which two processes? a. DNA Replication
More information